Vibratory massaging device



S. M. COFFMAN.

VIIBRATORY MASSAGING DEVIGE. v

APPLICATION FILED FEB. 19. 1918. I V 1,391,759. hte tedSept 27,1921.

a m MW MWM k x w W Wlhveww @MQW UNITED S TA PE S" PATENT oF S MUEL M. ,ooErMAN, OEKANSAS CITY, .MIssouRi, .ASSIGNOR T0 TI-VIEHBARBYETRSI ELECTRIC SPECIALTY COMPANYMA, con-ronarroii or KANSAS.

VIBRATORY MAssaGINo E ICE.

Application filed February 19, 1918.

To all whom it may] concern:

Be it known that I, SAMUEL M. CoFFMAN,

Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Vibratory Massaging Devices, of which the following" is a specification.

This invention relates to improvements in massaging devices, and the objects of the invention are to produce a device of this character which is simple in construction, economical to manufacture and maintain, and which is not likely to get out of order.

Another object is to produce a massaging device in which, different forms of applicators can be used, any one of which may he removed or replaced in a few moments.

Another object is to provide means by which the speed of the device may be easily and quickly regulated.

In order that said invention may be fully understood, reference will now be made to the accompanying drawing, in which:

Figure 1 is a vertical section of the device.

Fig. 2 is a plan view of the device.

Fig. 3 is a plan view ofthe device, with the top plate'removed.

Fig. 4 is a cross section, taken on line IV-IV of Fig. 1, showing a member for controlling the speed of the device when desired.

Fig. 5 is a side elevation of a different form of applicator, from that disclosed by Fig. l.

In carrying out the invention, I employ a tubular handle 1, provided with fixed bearings 2 and 3, respectively, at each end, in which a shaft 4 is journaled. Said shaft 4 is provided at one end with a collar 5 to prevent it from moving longitudinally in the bearings 2 and 3. An eccentric 6 is fixedly mounted upon one end of said shaft 4, for a purpose which will hereinafter appear. The opposite end of the shaft 4 is provided with an elongated slot 7 and a socket 8, for the reception of a flexible shaft adapted to be rotated by a motor (not shown) the end of the shaft being beveled as disclosed by Fig. 1, to guide the end of.

the shaft into said slot 7 and the socket 8.

The tubular handle 1 is provided at one end with a housing 17, carrying a pivot 9 therein, having a nut 10 threaded upon its 7 Specification of Letters Patent.

.ing 17, to exclude dust and other recess in the Patented Sept. .27, Serial No. 218,170.

lower portion to secure it in place in the housing 8. a citizen of the United States, residing at' 'An oscillatory lever 11 is fulcrumed upon said pivot 9. The inner end 12 of said lever is bifurcated to straddle the eccentric 6, by means of which it is oscillated. The outer end of said lever 11 is provided with an internally threaded tubular extension 15, adapted to, receive corresponding threads upon the different forms of applicators.

A cover plate 16 is provided for the housforeign matter therefrom. Said plate 16 is held in place by a screw 17 a threaded into a tubular pivot 9.

18 designates a brake for retardin'gthe speed of thedevice. Said brake 18 consists of a cylindrical member having a perforaricE- tion 19 therein, through which the shaft 4 9 extends. The ends 20 of the brake project through oppositely-disposed holes 21 in the tubular handle 1, thus allowing it to be operated from either side by pressing thereon with the thumb until the desired speed is obtained.

23 designates one form of applicator, consisting of a hollow, bell-shaped member, provided at its rear end with a tubular threaded extension 24 adapted to engage the threads in the tubular extension 15 of the lever 11.

In operation, the shaft 4 is rotated by a flexible shaft attached to a motor (not shown). The rotation of the shaft 4 causes the eccentric 6 to rotate, which in turn os cillates the lever 11, thus rapidly oscillating the applicator and producing the desired massaging effect.

The modified form of applicator, disclosed by Fig. 5, consists of a plate 28, having a plurality of cone-shaped projections 29, adapted to produce the massaging action. The rear side of the plate 28 is provided with a threaded extension 30 by means of which it is secured to the lever 11, in the same manner as the applicator 23. Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

1. A massaging device consisting of a handle, a shaft journaled in said handle, a brake projecting through said handle and engaging the shaft so that the speed thereof can be retarded by pressure on said brake, an applicator, and means associated with one end of the handle and driven by the shaft one end of the handle and driven by the 10 to actuate said applicator. shaft to actuate said applicator.

2. A massaging device consisting of a In testimony whereof I afiix my signature,

handle, a shaft journaled in said handle, a 1n the presence of two witnesses. brake havin an opening throu h which said shaft freely extends said bra l ie projecting SAMUEL COFFMAN' through opposite sides of the handle so that Witnesses pressure on either end will retard the shaft, F. G. FIs HER,

an applicator, and means associated with L. J. FISCHER. 

